RE: [TCML] SRSG vs. RQSG (Sucker Gaps)

["Phil Tuck" <phil@xxxxxxxxxxx>]

Brandon,
Trouble with building any RSG, Sync or non-Sync (ARSG)  is that we all tend
to build a size which is adequate for our current set-up, but not suitable
for the future if / when we get a better power source. (Yes, I have done it)
A suitably sized RSG for a NST will not handle a PIG or MOT bank. Bigger
electrodes need more motor power and a bigger rotor disc, as the dwell angle
suffers otherwise, and you may get power arcing.
An ARSG is not a good idea on a NST anyway (best internet source is at
http://www.richieburnett.co.uk/rotary.html  for the reasons). Also just
putting an RSG on any static setup will often give less performance unless
you alter the MMC size as well.

Regards
Phil

www.hvtesla.com

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Brandon Hendershot
Sent: 01 October 2010 03:14
To: Tesla Coil Mailing List
Subject: Re: [TCML] SRSG vs. RQSG (Sucker Gaps)

Hi Gary,

Good to know. It seems to me that coils with RSG's of that type sound
better, at least according to YouTube. But I'll be satisfied knowing that if
I didn't go with a propeller type gap, it would've been more trouble than
necessary. I guess I ought to go study up on RSG's now... Thanks Gary!

Brandon

On Thu, Sep 30, 2010 at 6:28 PM, Gary Lau <glau1024@xxxxxxxxx> wrote:

> Hi Brandon,
>
> The photo from my site that you referenced is something I build before 
> the propeller gap that did NOT work out.  The simplicity of a 
> propeller gap makes it a winner over any disk-based design, IMO.  And 
> since I was using a relatively small Teletype motor, I had a lot of 
> trouble making the disk and electrodes small and light enough that it 
> would start up reliably.  The propeller gap had no such trouble.
>
> FYI - the link you posted is hosted on my old ISP's server - I didn't 
> even think it was still there.  If they ever get around to deleting 
> data from expired accounts, know that my current ISP has my sync gap 
> page at http://www.laushaus.com/tesla/sync_gap.htm
>
> Regards, Gary Lau
> MA, USA
>
>
> On Thu, Sep 30, 2010 at 7:13 PM, Brandon Hendershot < 
> brandonhendershot@xxxxxxxxx> wrote:
>
> > Hi,
> >
> > I REALLY like the idea of a RSG, but it seems like an expensive and 
> > difficult project to take on.
> > Is it worth it for a system my size? (15/(30/60)NST, 3.5" Sec, 
> > 8.75nf
> MMC)
> > Although I imagine it will get it's time to shine when I go bigger...
> > (Keep answering my own questions here...) If I do decide to build 
> > one in the future, should I make a propeller type gap, or something 
> > like Gary's shown here?:
> > http://users.rcn.com/laushaus/tesla/srsg.jpg Which one in your own 
> > experience yields better results (If there are any differences)?
> > This's asking Gary for the most part, but everyone's input is always 
> > appreciated!
> >
> > Thanks,
> > Brandon
> >
> > On Sun, Sep 26, 2010 at 2:31 PM, McCauley, Daniel H < 
> > daniel.h.mccauley@xxxxxxxx> wrote:
> >
> > > That's an excellent point.  The sucker gap *is* much simpler than
> rotary
> > > gap and as you stated yields excellent performance as well.
> > > 48" of spark from a 12/60 NST is STILL awesome!
> > > Also, Terry Blake had great success with his asynchronous 
> > > propellar
> spark
> > > gap.  I'd really liked these as well as had great results with 
> > > them. If
> > you
> > > go that route, just keep in mind to physically shield it for safety.
> >  But,
> > > Terry's propellar gap was simple, easy to make, and worked well!  
> > > I was definitely a "fan!"
> > >
> > > Dan
> > > http://www.easternvoltageresearch.com
> > >
> > >
> > >
> > > When i used to make spark gap coils, I found the "sucker gap" to 
> > > be the best compromise in performance and complexity to build.  
> > > Going to a SRSG was only slightly higher performance over a sucker 
> > > gap, but a sucker gap was
> much
> > > better performing than any RQ gap id ever built.  I was often 
> > > getting
> > about
> > > 48" of spark from a 12/60 NST using a sucker gap which seemed 
> > > pretty awesome back then ;-).
> > >
> > > Steve
> > > _______________________________________________
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> > > Tesla@xxxxxxxxxx
> > > http://www.pupman.com/mailman/listinfo/tesla
> > >
> > _______________________________________________
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> >
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